K55VM i5 3210m successful legacy update from Mavericks 10.9.5 to Yosemite 10.10.1
1. Update Clover (2953+) & Reboot
2. Copy 10.10 kext folder (EFI)
3. Download 10.10(.1) from Mac App Store
4. Reboot & Check the intelcpupowermanagement patch & set version to 10.10.1 if needed in clover
5. Launch "Installer OS X Yosemite.app "